the grammatical relation that exists when a word qualifies the meaning of the phrase

source: wordnet30

4

an event that occurs when something passes from one state or phase to another

Example:

the change was intended to increase salesthis storm is certainly a change for the worsethe neighborhood had undergone few modifications since his last visit years ago

source: wordnet30

5

The act of modifying, or the state of being modified; a modified form or condition; state as modified; a change; as, the modification of an opinion, or of a machine; the various modifications of light.